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Heat wave in India kills over 1,100

  1. Jun 2, 2003 #1
    http://story.news.yahoo.com/news?tm...&u=/ap/20030602/ap_on_re_as/india_deadly_heat

    Temperatures have reached 120 degrees. Normal monsoon rains have not come. Over 1,100 have died due to this, according to India's state-run All India Radio. A district administrator said, "We have asked them not to come out into open between 10 a.m. and 5 p.m."

    Could this be a result of human-induced global warming?
     
  2. jcsd
  3. Jun 2, 2003 #2

    russ_watters

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    No. A heat wave is weather. Global warming is climate. Big difference.

    At worst, we've only increased the average global temperature by a couple of degrees F by now.

    Btw, why is this politics?
     
  4. Jun 2, 2003 #3
    The section is called "Politics and World Affairs".

    ------

    Bu climate change leads to changes in specific events as well. Droughts and floods are becoming more common, which many say is probably linked to global warming. Wouldn't a global increase in temperature make a heat wave that much worse?
     
  5. Jun 3, 2003 #4
    Global warming is a myth, remember? And so is pollution, and anything else that might slow down industry.
     
  6. Jun 3, 2003 #5

    russ_watters

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    Oops, good point.
    No, droughts and floods are NOT becoming more common. Thats a perception based on memory. Last winter was the coldest and snowiest winter I've ever seen. Does that mean we're entering the next ice age? No. In the US anyway, the worst droughts in history were in the 20s.

    Also, its important to note, the sun has an 11 year activity cycle. I'm not sure if its at a high or low right now.

    You are right however that a climate change could change specific events - but there hasn't been a major climate change yet. The worry of global warming is for FUTURE global climate change. The reason there is still so much controversy is that past climate change has been so small. Something like 2F in the past 100 years.

    But if you mean would a 2F change in average global temperature translate directly into a 2F increase in a heat wave, no. Climate is nowhere near that specific.
     
    Last edited: Jun 3, 2003
  7. Jun 3, 2003 #6

    FZ+

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    11 activity cycle doesn't have anything to do with the weather, as far as I know. Besides, it's been far more than 11 years since the 1920s...
    And wow, we are going back to the 1920s now? It's that bad?

    Of course not. Rather weather extremes are symptomatic of overall inbalancing of the weather system. It's not a smooth transition, but rather a metastable system that may collapse unexpectedly. Climate does have a large influence on weather.
    But some signs do mean bad news. This fits in a wider pattern of other incidents across the world.
     
  8. Jun 3, 2003 #7

    russ_watters

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    Actually, the 11 year cycle DOES affect global climate. You can read it on the rings of trees.

    Um, no. My point was its nowhere even close to that bad.
     
  9. Jun 3, 2003 #8
    Usually when I visit in India, it's during the Monsoon season.

    Did it give any specific locations of severity?
     
  10. Jun 3, 2003 #9

    russ_watters

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    Andhra Pradesh
     
  11. Jun 4, 2003 #10

    FZ+

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    Also, what does the fact the worst droughts happened in the 1920s have anything to do with the ice age? And what does the ice age have to do with global warming?
     
  12. Jun 4, 2003 #11

    russ_watters

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    They seemed like simple enough examples/analogies to me. Nevermind.
     
  13. Jun 6, 2003 #12

    FZ+

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    In fact, yes that is very bad. When you realise that the 1920s are after the industrial revolution where the majority of the pollution occured and we get as a result the worst droughts in history. The suggests that if there is a link, pollution or environmental damage from farming has an effect much sooner that previous thought and that continued mismanagement may lead to a recurrence of these conditions.
     
  14. Jun 7, 2003 #13

    russ_watters

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    No. I'm sorry, but that is not historically accurate. The level of CO2 production has been steadily increasing since the 1800s. HERE is a graph of historical CO2 levels. Its not like the CO2 levels skyrocketed in the 1800s and then went down again in the 1930s and are now going up again - which is what would be required by what you suggest. There is also a form of inertia here: a lag between the CO2 levels and the resultant temperature flux. Far from suggesting a link, it shows just the opposite: how much deviation there can be from the mean without the influence of global warming necessarily being a factor.
     
    Last edited: Jun 7, 2003
  15. Jun 7, 2003 #14
  16. Jun 7, 2003 #15

    FZ+

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    And it still isn't reassuring that the worst drought on record occured after human activity, rather than before. (also, there may be the confusing factor of agricultural activity in that period.) I don't think the fact the worst droughts occured relatively so recently is something makes one feel better.
     
  17. Jun 7, 2003 #16

    kat

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    I thought that there had been a recent study showing that there may have been an even more severe drought during the period between 1550 and 1600 then the "dustbowl" drought of the 30's? Also, what about evidence of cyclic weather patterns? I don't dispute the need to cut pollution and waste, we are a very "green" household but..I do like to know the "truth" as opposed to either sides propagandized opinion.
     
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